<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Insert title here</title>
</head>
<body>
<form action="RegisterServlet" method="POST">
    学&nbsp;&nbsp;&nbsp;号：<input type="text" name="id"><br />
    姓&nbsp;&nbsp;&nbsp;名：<input type="text" name="username"><br />
    电&nbsp;&nbsp;&nbsp;话：<input type="text" name="phone"><br />

    <input type="submit" value="提交">
</form>
</body>
</html>